Missing Color Options in MY TCL TV using Colourspace ZRO.

Hi,
I'm trying to calibrate my TCL 64" C6K (minilqd, qled, HVA panel) with a colorimeter and ColourSpace ZRO but I can't find these options:
-. Full Color Space (0-255)
-. Limited Color Space (16-235)
-. RGB 4:4:4 or YCbCr 4:2:0
Also, when adjusting White Balance 2 Point and 20 point I have the following behavior:
20 points intervals 17, 18, 19 and 20 does not affect any measurement in Colorspace (no 20, 19, 18 etc... or any gray). Only when Adjusting interval 16 and below I start to see the adjustments I make reflect on ColourSpace, but it does not exactly correspond to the correct gray... for example Interval 5 is not Gray 5%.
Adjusting 2 point White balance, I would assume is Gray 30% for low and Gray 100% for high?

You'll want to contact Ted by email at his website (displaycalibrations.com) - he handles support for ZRO.
It appears that your TCL - like many current displays - may not use 5% spacing for 20-point grayscale adjustment points, but instead uses its own spacing, probably 10-bit. You will need to either determine the correct points or stick with 2-point.
2-point doesn't use fixed levels. You can use 30/100, 30/90, 30/80, 20/100, etc. Whatever gives you the best overall results on the whole grayscale.
IIRC, YCbCr 4:2:0 is a video storage format only. No program source that I'm aware of uses it for output, just RGB or YCbCr 4:2:2 or 4:4:4.

Various consumer devices can be configured to output 4:2:0 (restricted by HDMI to 4K@50+), e.g., Shield and Apple TV 4K. Panasonic UB820 can be configured for 4:2:0, but only for 8-bit SDR.

mga2009

Those color space options are available in your pattern generator. Which TPG do you use?

Your TV doesn't have options to configure the HDMI input manually, so it's using the AVI from your TPG HDMI to set the levels.

For example, if you send YCbCr 4:4:4 from your TPG, the TV will see from the HDMI AVI that you are sending VIDEO levels, and then you will need to use LEGAL levels in ZRO and patchlists for LEGAL.

Thank for your replies.
I am using a RPI 4B with pgenerator+ and using legal, both in in pgenerator and ZRO.
Could it me that the 20 point intervals from my TCL work for full color space? I will try sending full and testing.

Define the correct control points/patches yourself: https://lightillusion.com/manual_tv_cal.html

Steve

thanks for your reply!

I tried this, and its consistent with the fact that Intervals 17, 18, 19 and 20 dont change anything.

I sent 8bit FULL 0-255 with pgenerator+ and measured 20 point changing R, G and B to MAX just as it says in the instructions.
I've got the measurement shown in the upload picture.

As you see, there are 16 peaks. So when changing 17, 18, 19 and 20 does not make any difference.

In my TCL TV:
interval 20 - R to max
interval 19 - g to max
interval 18 - b to max
interval 17 - R to max
interval 16 - g to max
interval 15 - b to max
interval 14 - R to max
interval 13 - g to max
interval 12 - b to max
interval 11 - R to max
interval 10 - g to max
interval 9 - b to max
interval 8 - R to max
interval 7 - g to max
interval 6 - b to max
interval 5 - R to max
interval 4 - g to max
interval 3 - b al max
interval 2 - R al max
interval 1 - g to max

Peaks are in interval 2 point 004, interval 3 point 021, interval 4 point 037, interval 5 point 053, interval 6 point 068, interval 7 point 084, interval 8 point 099, interval 9 point 114, interval 10 point 129, interval 11 point 145, interval 12 point 159, interval 13 point 174, interval 14 point 189, interval 15 point 204, interval 16 point 219, interval 17 point 236.

20 point

Use regular PGenerator 1.6

PGenerator+ hasn't been verified to be bit-perfect.

When you do this testing, before taking measurements, you have to check for clipping near black and near white, so you need to use these patterns to evaluate and adjust your brightness or contrast to unclip the signal.

When your TV isn't clipping near black/white, try to find the custom control points.

Why do you use FULL range and not LEGAL? Do you use the TV as a PC monitor?

ConnecTED

TED, thanks for your help.
I can´t find the link to download regular PGenerator 1.6 .- Is it paid versión?

OK, I will check again for clipping near black and near white

No, I do not use my TV as monitor... only for streaming apps (Android TV) and PS3 and PS5 (both in RGB 0-255)

Best Regards.

Set all your sources to YCbCr 4:4:4, and calibrate for VIDEO/LEGAL.

Ted's PGenerator ISO is paid.

Public vs. Ted's

ConnecTED

Thanks Ted. Placed an order for TPG ISO. Waiting for the link.
From there I will retry everything and report.

thanks.

mga2009

Already installed TPG 1.6 on my rpi, installed DisplayControl, ColourSpace ZRO detect it and i can send patches but...

How do I access 8/10-bit patchlists to perform the measurements shown here:

https://displaycalibrations.com/pgenerator_order.html

Also is there something to do in DisplayControl or I just can use ColourSpace to configure?

Problem solved. Thanks.

mga2009
Look into the email with Ted's PGenerator order, and you will see a customer download folder. Inside that folder, you will find the patchlists and DoVi guide.

From the Cloud, get only the two Templates from the user 'connected', Settings 1.6, and Ted's.

You can enhance your license to inject patterns using ColourSpace GUI; see here.

ConnecTED

Thanks! I just sent the request to enhance my license.

Best Regards.